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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Valley Municipal Utility District 2 Rancho Viejo

Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND10ND
2016ND10ND
2017ND10ND
2018ND10ND
2019ND10ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 2 ppb

The legal limit for alachlor, established in 1991, was based on toxicity studies in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-05AC45754ND
2015-03-18AC85139ND
2016-03-07AD27382ND
2017-03-01AD72873ND
2018-02-21AE14839ND
2019-02-07AE53625ND